How V8 optimises JavaScript code?

I suppose, some of you heard that JavaScript executes as fast as C++. Some of you don’t understand how it’s even possible. JavaScript is a dynamically-typed language with Just in Time (JIT) compilation, when C++ is static-typed language with Ahead of Time (AoT) compilation. And somehow, optimised JavaScript code executes a little bit slower than C++ or even with the same speed. To understand why t

[Rockridge]

JavaScriptエンジンV8のコンパイラがどのような働きをしているか、簡単に解説した記事。Full-Codegen／Crankshaftが中心でTurboFanは含まれない。参照：http://nothingcosmos.github.io/V8Crankshaft/src/blog.html

[efcl]

V8はどうやってJavaScriptのコードを最適化しているのかというか。 Lithium Compiler